Moisture Analyzer

Plastic Moisture Analyzer

Reliable Moisture Content Determination of Plastic Pellets on the Production Floor

The HX204 plastic moisture analyzer is a device that is perfect for moisture content determination of plastic pellets, resins, and other polymers such as polyamides. The intuitive operation and robust design enable fast and chemical-free moisture analysis to be performed directly on the production floor next to the injection molding machine. The HX204 moisture analyzer helps you avoid waste, reduce downtime, and ensure high quality plastic and polymer parts.

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Advantages of METTLER TOLEDO's Plastic Moisture Analyzer

Robust, All-Purpose Moisture Analyzer

Robust, All-Purpose Moisture Analyzer
This short video explains the factors you should consider when choosing a moisture analyzer to measure the extremely low levels of moisture in plastics.

Select the Best Moisture Analyzer for Plastic Pellets

This short video explains the factors you should consider when choosing a moisture analyzer to measure the extremely low levels of moisture in plastics.

Accurately Measure Moisture Content in Plastics

Accurately Measure Moisture Content in Plastics

Get highly reliable and repeatable moisture results thanks to fast halogen heating and superior weighing performance with 0.001 %MC (10 ppm) readability.

High Performance Moisture Analyzers

High Performance Moisture Analyzers
The HX204 and HS153 moisture analyzers deliver highly accurate and repeatable results for any sample type, and can fulfill all compliance requirements.

High Performance Plastic Moisture Analyzer

With the HX204 moisture analyzer you get the performance you need for determining the small quantities of moisture in your plastic pellets and resins.

Fast Return on Investment for Moisture Analyzer

Fast Return on Investment

Fast and reliable moisture results help you increase productivity, optimize processes and save money.

Plastic Moisture Analysis in 2 Minutes

Get Results in Only 2 Minutes

The QuickPredict function predicts the final moisture content during the first stage of the measurement. This early result provides an extremely fast assessment of your manufacturing processes, enabling you to make prompt and appropriate decisions.

Perfect for Lab and Production

Perfect for Lab and Production

Quality materials and robust construction ensure your plastic moisture analyzer withstands the demands of both laboratory and production environments.

Measure Moisture of Plastic at Your Injection Molding Machine

Measure Moisture Directly at Your Injection Molding Machine

Get moisture results in minutes, right where you need them on your production floor - fast, easy, and without any chemicals.

Quick and Easy Cleaning of Plastic Moisture Analyzer

Cleaning Made Easy

Flat, stainless steel surfaces in the measurement chamber and smooth surfaces on the instrument body make cleaning a breeze, even in challenging and dirty environments.

Plastic Moisture Analyzers - compliance and ALCOA+ requirements

Increased Efficiency through User Management

Users sign in and see only their preconfigured home screen. Plastic moisture measurements can be started directly from onscreen method shortcuts, simplifying operation, minimizing errors, and improving efficiency.

Flexible Data Management for Plastic Moisture Analyzer

Flexible Data Handling

Ensure results are documented by transferring data via USB, Ethernet, Wi-Fi and RS232. You can also transfer results automatically to our EasyDirect Moisture PC software, or simply print out your results on a network or strip printer.

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Why is moisture content determination of plastic pellets and resins important?

In many plastic resins, such as polyamides and polycarbonates, moisture content is an important factor for processing, product appearance and product properties. If plastic pellets are too moist, processing problems during injection molding can occur. There may also be a loss in quality of the final product, evidenced by splaying, formation of flash and impaired mechanical properties such as reduced impact and tensile strength. Many plastics are susceptible to absorbing moisture during transportation and storage, which is why the control and monitoring of moisture content is crucial to ensure high quality end products.

What is the best moisture analyzer for plastics measurements?

The HX204 moisture analyzer offers the best measurement performance for samples with low moisture content (<1% MC) such as plastic pellets and resins, e.g. polyamides, ABS and polycarbonates. Thanks to the hanging weighing pan, which separates heating and weighing elements, and the high-performance weighing cell, low moisture contents can be measured with a high degree of accuracy. The HX204 moisture analyzer offers the option of a resolution as fine as 0.1 mg. This is important because the rounding error of the last digit is the dominant cause of error whenever the second last digit (% MC) is of significance. Therefore, this high resolution of 0.001% MC (or 10 ppm) is required for plastic pellets, which often have a moisture content below 0.1% MC.

Why is the HX204 moisture analyzer required for accurate moisture measurement in plastics?

Samples with very low moisture content (< 1% MC), such as plastic pellets and resins, require superior measurement performance and 0.1 mg readability to deliver reliable, repeatable moisture content results (0.001% MC). The HX204 moisture analyzer not only has the necessary readability, it also offers special settings, such as pre-heating to minimize possible weighing errors and the function to delay the switch-off criterion, which serves to allow extra time to heat plastic samples in order to provide an accurate measurement of the moisture content in the plastic or resin. Furthermore, ASTM standard D6980-12 “Standard Test Method for Determination of Moisture in Plastics by Loss in Weight” only recognizes the use of moisture analyzers with 0.1 mg resolution, such as the HX204 moisture analyzer.

A moisture analyzer determines the moisture content of a sample with the loss on drying method and consists of a weighing and heating unit (infrared). It is often also called moisture balance or moisture meter.



What kind of plastics can be measured with a moisture analyzer?

The HX204 moisture analyzer can determine the moisture content of various plastics and resins, such as ABS (Acrylonitride butadiene styrene), PC (Polycarbonate) various types of PA (Polyamide), PET (Polyethylene terephtalate), reinforced polymers and many others. The temperature from a drying oven method or from Karl Fischer Titration can be taken as a starting point, but should be adjusted depending on the plastic type and color. For moisture content determination of plastics containing plasticizers special care need to be taken as the plasticizer might evaporate and will therefore be recorded as moisture content.

Learn more about moisture content determination in plastic pellets here:

What is the best moisture analyzer for my application?

Plastic Moisture Analyzer
How to choose moisture balance

Finding the right moisture analyzer for your application is not always easy. The best moisture analyzer is the one that fits to your specific requirements. Typically, requirements not only concern measurement performance but also other factors such as ease-of-use, data management capabilities, robustness (long instrument lifetime) and compliance features. METTLER TOLEDO offers a wide range of reliable instruments that cover basic, all-round and high-performance requirements.